Ignore duplicate key insert with Entity Framework

Question

I\'m using ASP.NET MVC4 with Entity Framework Code First. I have a table called \"users\", with primary key \"UserId\". This table may have 200,000+ entries.

I need

Answer 1

You can just filter out the failures and keep trying until it succeeds or you get another sort of Exception

public partial class YourEntities: DbContext
{
    public override int SaveChanges()
    {
        var isSaved = false;
        do
        {
            try
            {
                return base.SaveChanges();
            }
            catch (DbUpdateException ex)
            {
                var entries = ex.Entries;
                foreach (var entry in entries)
                {
                    // change state to remove it from context 
                    entry.State = EntityState.Detached;
                }
            }
        }
        while (!isSaved);

        return null;    // never gets here
    }
}

You might want to put in some extra logic to avoid an infinite loop.